[note that the Trib appeared to be misspelling it as "Theater" in this timeframe.]
First, it appears the show might have originally been scheduled for 10/29/81.
That would have made it the first show of the tour, but it looks like it was bumped toward the end and held on November 17th.
Second, the Jerry Site has always shown early and late shows for this date. But a listing in the Chicago Tribune from November 15 shows only one show, beginning at 7:30:
While I am in this time-period, does anyone really believe that the JGB played three sets at the Denver Rainbow on 11/19/81? I don't. But I do hope to find out. You'll be the first to know.
update: Mason Taylor aud listening notes